A Study of the Wear in Ceramic Bearings by a Thin-Layer Activation Method

A Study of the Wear in Ceramic Bearings by a Thin-Layer Activation Method The wear resistance of ceramic sliding bearings fabricated from sintered Si3N4 and ZrO2 is studied by the thin-layer activation method. Radioisotopic tags were applied by exposing the ceramic components to a proton beam with an energy of 7.6 MeV. Exposure conditions are specified to avoid radiative damage of the surface of ceramic components. The wear under dry-friction conditions was determined by radiometry of the isotopically labeled surface using calibration curves. The running-in time was found to be about 400 min for Si3N4-based and 500 – 600 min for ZrO2-based components, with wear rates of 4 – 5 and 5 – 6 μ, respectively. The data obtained attest to the high performance characteristics of the ceramic bearings that are used for submersible pumps for pumping crude oil out of wells. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

A Study of the Wear in Ceramic Bearings by a Thin-Layer Activation Method

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by Plenum Publishing Corporation
Subject
Materials Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Materials
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1023/A:1011371727266
Publisher site
See Article on Publisher Site

Abstract

The wear resistance of ceramic sliding bearings fabricated from sintered Si3N4 and ZrO2 is studied by the thin-layer activation method. Radioisotopic tags were applied by exposing the ceramic components to a proton beam with an energy of 7.6 MeV. Exposure conditions are specified to avoid radiative damage of the surface of ceramic components. The wear under dry-friction conditions was determined by radiometry of the isotopically labeled surface using calibration curves. The running-in time was found to be about 400 min for Si3N4-based and 500 – 600 min for ZrO2-based components, with wear rates of 4 – 5 and 5 – 6 μ, respectively. The data obtained attest to the high performance characteristics of the ceramic bearings that are used for submersible pumps for pumping crude oil out of wells.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Oct 9, 2004

References

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